How did this became '1994'?

Question

function person(name, age) {
this.name= name;
this.age = age;
this.yearOfBirth = bornYear;
}
function bornYear() {
return 2016 - this.age;
}

var p = new person("A", 22);

document.write(p.yearOfBirth());

I can understand what is function, what is method, object literal, object constructor, properties, but not the logic, help me understand.

How did 2016 - 22 = 1994?....... Ohh I understand now, lol haahahaha. I was just confused because of this.age. This is programming, anyway, I'm gonna post it, I just type it now, just sharing now XD

Answer 1

Okay, I'm just gonna ask now, how can I print object "p"?

Answer 2

Or the variable p